Floods and Flash Flooding
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Stearns County and Minnesota are subject to seasonal flooding and major flood events. A flood is defined as the overflowing of rivers, streams, and lakes. This typically is a result of natural, weather-related events like excessive rainfall and rapid snowmelt. However, floods can be caused by technological disasters (see Dam Failure).
There are several types of flooding:
- Flash floods: quickly rising streams after heavy rain or rapid snowmelt
- Ice jams: ice that accumulates at a natural or human-made obstruction and slows the flow of water
- Riverine floods: periodic overflow of rivers and streams
- Urban floods: overflow of storm sewer systems when heavy rain or rapid snowmelt exceeds system capacity
Given the presence of three major rivers, the Mississippi, Sauk and Clearwater, as well as numerous lakes and streams, Stearns County is susceptible to flooding. Recent major flooding in the county occurred in March-July 2001 and March - April 1997. Stearns County received a federal disaster declaration and assistance for both floods.
Preparedness
What to do before a flood
- Know the terms used to describe flood threats:
- A flood or flash flood watch is issued when conditions are right, usually during periods of heavy rain or snowmelt.
- A flood warning means a flood is imminent or is occurring in certain locations.
- A flash flood warning is issued when there are reports of flash floods.
- Determine if your home or business is at risk for flooding. Contact the Stearns County Environmental Services Department for flood maps and 100-year flood elevation: 320-656-3613 or 1-800-450-0852 toll-free. Go to Floodsmart.gov's Flood Risk Assessment; type in your property address to determine your relative risk for flooding, view flood maps and obtain insurance resources.
- Find out if you qualify for the National Flood Insurance Program by contacting your insurance agent.
- To prevent flood waters from backing up in drains, install check valves in sewer traps.
- Make a Disaster Supplies Kit. Include additional materials like sandbags, plastic sheeting, plywood and lumber that can help fortify your home during a flood.
Response
What to do during a flood
- Stay tuned to radio and television news for announcements on possible evacuations. If ordered to evacuate, do so immediately and follow the recommended routes.
- Secure your home and possessions. Move or secure outdoor items so they won't float away. If possible, turn off all utilities at the main switch.
- NEVER drive over a flooded road. Even a few inches of water can cause your vehicle to stall or float. The National Weather Service's "Turn Around Don't Drown" campaign details the threats of driving and walking in flood waters.
Recovery
What to do after a flood
- If your property has been affected by the flooding, immediately call your insurance agency for assistance.
- Check the exterior of the building for structural damage before you enter. Open the doors and windows and let air out - this will release odors or gas that may have built up.
- Use only a battery-powered flashlight when you enter the building in case of a gas buildup. Make sure all the utilities are turned off, and call an electrician to check your electrical system. Report any downed or damaged utility lines.
- Do not eat any fresh food that has come in contact with flood water. Do not drink water for your tap until it is tested and if applicable, the well has been pumped.
- To start drying out the building, open all windows and doors and start removing mud while it is still wet.
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